Dun Dornaigil is an Iron Age broch in Sutherland. The broch has an external diameter of about 14.5 metres. The walls generally survive from 2 to 3 metres around the circumference of the broch, but above the doorway they rise to nearly 7 metres. The entrance is on the northeast side but is filled with debris. There is a massive triangular lintel over the entrance which measures 1.4 metres along the base, and 0.9 metres in height. The interior of the broch is still filled with collapsed rubble from the upper levels and is therefore not accessible.References:
Frösöstenen is the northern-most raised runestone in the world and Jämtland's only runestone. It originally stood at the tip of ferry terminal on the sound between the island of Frösön and Östersund. The stone dates to between 1030 and 1050. It has now been relocated to the lawn in front of the local county seat due to the construction of a new bridge, between 1969 and 1971, on the original site.
Frösö runestone inscription means: Austmaðr, Guðfastr's son, had this stone raised and this bridge built and Christianized Jämtland. Ásbjörn built the bridge. Trjónn and Steinn carved these runes.